Fig. 4From: Combining single-cell RNA sequencing of peripheral blood mononuclear cells and exosomal transcriptome to reveal the cellular and genetic profiles in COPDThe lncRNA/circRNA–miRNA–mRNA ceRNA regulatory networks. Triangular nodes represent lncRNAs, V-shaped nodes represent miRNAs, elliptical nodes represent mRNAs, and rhombic nodes represent circRNAs. miRNA microRNA, ceRNA competing endogenous RNABack to article page